Why is it important to build a base tan?
Moderate exposure to UVB rays help develop a natural barrier in the skin to protect the body from excessive UV light. UVB rays stimulate the production of melanin, which absorbs and scatters radiation to thicken the epidermis (the top skin layer), thereby limiting the amount of UV light. If this photo-protection (base tan) is not developed or a sunscreen is not used, sunburn can occur and the DNA of the skin cells may become damaged. Not building a base tan or tanning too much too often can cause your skin to thicken and actually make it harder to achieve the tan that you desire.